android-actionbar

问题 I have seen many posts and answers but still not clear to me, what to do if i have to change Tab indicator color without using Android Asset Studio public class MainActivity extends ActionBarActivity implements android.support.v7.app.ActionBar.TabListener{ private ViewPager tabsviewPager; private TabsAdapter mTabsAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tabsviewPager = (ViewPager)

问题 I'm trying to develop an Android app and I have some problems with the ActionBar. I need something similar to Instagram or Twitter for Android: I have an Action Bar with 3 tabs and these tabs have some buttons; every button has an OnClick() that replaces the actual fragment with a new one (for example ''FragmentN'') using FragmentTransaction (and the method replace()) . My first problem is that when I select a tab from the ActionBar, the selected tab doesn't replace "FragmentN" but it places

问题 In my ActionBar , I have a MenuItem that has attribute showAsAction="always" as seen in the image below. Based on the connection a user has to our servers, I will be changing the text as well as color of the item. Currently, I am able to change the text of the item very easily in onPrepareOptionsMenu(...) : @Override public boolean onPrepareOptionsMenu(Menu menu) { MenuItem item = menu.findItem(R.id.action_connection); if(mIsConnected) { item.setTitle(R.string.action_connected); } else { item

问题 I'm a beginner, I have made an app which contains navigation drawer along with the action bar in mainactivity.It worked perfectly on API 23 but in API 16, action bar isn't showing up.I searched many links on "actionbar not displaying" but they were having problems below API 11/8.After API 11, I think AppCompat should work (which I have used) Here are images Here is my styles.xml <resources> <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat"> <!-- Customize your

问题 I am working on an app that uses a theme that extends @style/Theme.AppCompat.Light.DarkActionBar . On one of my activities, there is an Action Bar icon that shows three options with radiobuttons (here's an extract from the menu XML file): <item android:icon="@drawable/ic_action_filter_white" android:showAsAction="always" android:title="" preparatest:showAsAction="always"> <menu> <group android:checkableBehavior="single" > <item android:id="@+id/menu_filter_all" android:title="@string/history

问题 Is there a way (perhaps some special character along the lines of non-breaking spaces) that I can force the menu items in my Action Bar to have two line labels? I think this just looks better than long, single-line tab labels... Thanks, R. Edit, additional info: My apologies, I have so far managed to avoid needing the overflow menu, probably because I'm developing for a Nexus 7 with a nice large screen. To clarify, one of my menu tabs (in the action bar proper) is "Restore Defaults", but I

问题 I would like to change the background of the tabs. I tried everything during the last 2 days, so I decided to post my code here. The background of the ActionBar is set correctly but the TABS stay black. <style name="CustomActivityTheme" parent="Theme.Sherlock"> <item name="android:actionBarStyle">@style/MyActionBar</item> <item name="android:actionBarTabStyle">@style/MyActionBarTabStyle</item> <!-- other activity and action bar styles here --> </style> <!-- style for the action bar

问题 If I have an Activity with a fullscreen theme , set up like this: <activity android:name=".FullscreenActivity" android:theme="@style/MyTheme.FullScreen"/> With MyTheme.FullScreen defined as: <style name="MyTheme.FullScreen" parent="@android:style/Theme.Holo.Light.NoActionBar.Fullscreen"> </style> ... is it possible to exit fullscreen mode programmatically ? I specifically want to show the Action Bar (with its navigation options) in certain situations, while usually having the activity in

问题 I have MenuItems in the ActionBar and I am using Fragments inside ViewPager. Now I would like to handle onMenuItemClickListener event inside my fragment. It works fine inside Main Activity. But not inside Fragments. And also it doesn't fetch any error. Here is the methods that I tried. Both works fine inside Activity. First method: public boolean onCreateOptionsMenu(Menu menu) { MenuItem item = menu.findItem(R.id.grid_view); item.setOnMenuItemClickListener(new OnMenuItemClickListener() {

问题 I have an activity whose xml is: <?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true" tools:context="ivykoko.com.likechecker.MainActivity"> <android.support.v7.widget.RecyclerView xmlns:android=